linux-kernel - [PATCH] block: swim3: make of_device

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Date:   Fri, 16 Jun 2017 15:24:39 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     jthumshirn@...e.de, axboe@...com, mingo@...nel.org
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] block: swim3: make of_device_ids const.

of_device_ids are not supposed to change at runtime. All functions
working with of_device_ids provided by <linux/of.h> work with const
of_device_ids. So mark the non-const structs as const.

File size before:
   text	   data	    bss	    dec	    hex	filename
   8908	   1096	    624	  10628	   2984	drivers/block/swim3.o

File size after constify swim3_match:
   text	   data	    bss	    dec	    hex	filename
   9708	    296	    624	  10628	   2984	drivers/block/swim3.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/block/swim3.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/swim3.c b/drivers/block/swim3.c
index ba4809c..7f72f8d 100644
--- a/drivers/block/swim3.c
+++ b/drivers/block/swim3.c
@@ -1245,7 +1245,7 @@ static int swim3_attach(struct macio_dev *mdev,
 	return 0;
 }

-static struct of_device_id swim3_match[] =
+static const struct of_device_id swim3_match[] =
 {
 	{
 	.name		= "swim3",
-- 
1.9.1